tty: tty abstraction initial implementation

kernel-src/include/kernel/tty.h

@@ -0,0 +1,33 @@
+#ifndef _TTY_H
+#define _TTY_H
+
+#include <mutex.h>
+#include <termios.h>
+#include <kernel/poll.h>
+#include <ringbuffer.h>
+
+#define DEVICE_BUFFER_SIZE 512
+#define READ_BUFFER_SIZE 4096
+
+typedef void (*ttydevicewritefn_t)(char *str, size_t size);
+
+typedef struct {
+	pollheader_t pollheader;
+	char *name;
+	ringbuffer_t readbuffer;
+	mutex_t readmutex;
+	mutex_t writemutex;
+	termios_t termios;
+	char *devicebuffer;
+	int devicepos;
+	ttydevicewritefn_t writetodevice;
+	int minor;
+	winsize_t winsize;
+} tty_t;
+
+void tty_init();
+tty_t *tty_create(char *name, ttydevicewritefn_t fn);
+void tty_destroy(char *name, tty_t *tty);
+void tty_process(tty_t *tty, char c);
+
+#endif